The Ravens’ run defense was gashed Thursday night, giving up 170 yards rushing to the Falcons.

That was not acceptable to linebacker Terrell Suggs. Yes, it’s only preseason. But for the Ravens, it was too reminiscent of last season, when their run defense was inconsistent.

Following Saturday’s practice, Suggs said he was still confident in the Ravens’ ability to stop the run. However, he admitted the Ravens had things to work on.

“You definitely gotta (have) concern, but I don’t want you to confuse concern with panic,” Suggs said. “Atlanta is a hell of a ball team. Do you hit the panic button, like ‘Oh my God, this team is going to struggle against the run this year?’ Absolutely not. You get the things corrected, you take that into the next game.”

Players like Chris Canty, Marcus Spears, Brandon Williams, Daryl Smith, and Arthur Brown were all acquired during the offseason with improving the run defense in mind. Coach John Harbaugh said the Ravens’ problems against the run Thursday were caused by a lack of discipline.

“It wasn’t the fact that we were getting knocked around, it was the fact that we did not do a good job of playing team run defense,” Harbaugh said after Thursday’s practice. “One guy can’t be upfield, and one guy can’t run behind the block. We’re better than that. I think our guys are so excited to play that they lost track of their fundamentals a little bit.”

Harbaugh was glad to get players back on the practice field Saturday. However, when the Ravens host the Panthers in their next preseason game Thursday night, Harbuagh will be expecting the run defense to improve.

“It was a good tough practice, as you saw, full pads,” Harbaugh said. “We got a lot of work done, and there’s a lot to work on.”